Periodic Table Navigator

		Group
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
Period	▲ 2 ▼	3 Li Lithium [He] 2s1	4 Be Beryllium [He] 2s2											5 B Boron [He] 2s2 2p1	6 C Carbon [He] 2s2 2p2	7 N Nitrogen [He] 2s2 2p3	8 O Oxygen [He] 2s2 2p4	9 F Fluorine [He] 2s2 2p5	10 Ne Neon [He] 2s2 2p6

Tip: Hover over an element to compare its electron configuration to that of the element to its right.